Home / 13,434.26-20,151.38-5,112.34

Finding the Fourth Proportional to 13,434.26, 20,151.38 and 5,112.34

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Solution

The fourth proportional to 13,434.26, 20,151.38 and 5,112.34 is: 7,668.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.26 : 20,151.38 = 5,112.34 : x
  2. Step 2: Convert to fraction form
    13,434.26/20,151.38 = 5,112.34/x
  3. Step 3: Cross multiply
    13,434.26x = 20,151.38 × 5,112.34
  4. Step 4: Simplify right side
    13,434.26x = 103,020,725.11
  5. Step 5: Solve for x
    x = 103,020,725.11/13,434.26
  6. Step 6: Final answer
    x = 7,668.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.